Exactly 20 years ago, the world first heard the stunning news that one of the most famous fashion designers had been murdered in front of his mansion.

Gianni Versace, the man who designed some of the most iconic fashion looks of the 1990s, was found shot to death just outside the gates of his home in Miami Beach. He had just returned home after walking to his local coffee shop for his daily newspaper.

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A witness chased the gunman into a nearby parking garage. Miami police discovered various personal items and a passport on the ground near a parked truck. Local police were soon notified by the FBI that Versace may have been the victim of a killer who had been on the bureau's 10 most wanted list.

The suspect, Andrew Cunanan, had been on the run from authorities after killing four people across the country. After killing two men in Minneapolis, Cunanan's killing spree continued to Chicago and New Jersey before he made his way to South Florida where he killed Versace.

Cunanan, a California native, would reportedly trade sex and his good looks to wealthy older men to continue keeping up the appearance of an affluent lifestyle, according to a 1997 Vanity Fair article.

Even 20 years after the heinous crime spree, police have never been able to determine what led Cunanan to kill his victims. The first victim, Jefferey Trail, was found beaten to death in the apartment of the second victim David Madson. Madson and Cunanan had been lovers, but friends insist it was never a serious relationship.

Following the Minneapolis murders, Cunanan kills Lee Miglin, 72, in Miglin's Chicago home. He steals Miglin's car and drives to New Jersey where he kills his fourth victim, cemetery caretaker William Reese. Cunanan then takes Reese's vehicle where he drives to Florida for his final crime.

Police were never able to question Cunanan. The 27-year-old shot himself on a house boat in Miami nine days after Versace's murder.

The story of the Versace murder is set to be dramatized in the upcoming second season of "American Crime Story: The Assassination of Gianni Versace." Filming is currently underway with Darren Criss set to play Cunanan and Édgar Ramírez playing the role of Gianni Versace.